Mercedes-Benz looked towards the boxfish for their bionic car concept. Noting the aerodynamics and efficiency of the boxfish's shape, the engineers decided to apply the characteristics of the fish to a car. The result is a very streamlined vehicle with a 65% lower drag coefficient than other compact cars out at the time (2005).
Velcro was invented by Swiss engineer George de Mestral in 1941 after he removed burrs from his dog and decided to take a closer look at how they worked. The small hooks found at the end of the burr needles inspired him to create the now ubiquitous Velcro.